$ Enzymes are special types of proteins. ! Those substances which interfere with the action of enzymes are called inhibitors.

$ Enzymes are special types of proteins. ! Those substances which interfere with the action of enzymes are called inhibitors.
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$ Enzymes are special types of proteins. ! Those substances which interfere with the action of enzymes are ... wrong D. If both As and R are wrong.
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Which one of the following pairs of chemical substances, is correctly categorised? (a) Calcitonin and thymosin - Thyroid hormones (b) Pepsin and prolactin - Two digestive enzymes secreted in stomach (c) Troponin and myosin - Complex proteins in striated muscles (d) Secretin and rhodopsin - Polypeptide hormones

Description : Which one of the following pairs of chemical substances, is correctly categorised? (a) Calcitonin and thymosin - Thyroid hormones (b) Pepsin and prolactin - Two digestive enzymes secreted in ... and myosin - Complex proteins in striated muscles (d) Secretin and rhodopsin - Polypeptide hormones

Last Answer : (c) Troponin and myosin - Complex proteins in striated muscles

$ Those enzymes which are active inside a cell are called extra-cellular enzymes. ! Enzymes lower the rate of biological activities.

Description : $ Those enzymes which are active inside a cell are called extra-cellular enzymes. ! Enzymes lower the rate of biological activities.

Last Answer : $ Those enzymes which are active inside a cell are called extra-cellular enzymes. ! Enzymes lower the rate ... wrong D. If both As and R are wrong.

By which of the following means antifungal chemotherapeutic agents may affect fungi? A- Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis B- Interfere with normal nucleic acid synthesisInterfere with ergosterol biosynthesis and thus alter the structure of the cytoplasmic C- membrane as well as the function of several membrane-bound enzymes like thoseinvolved in nutrient transport and chitin synthesis D- all of these

Description : By which of the following means antifungal chemotherapeutic agents may affect fungi? A- Interfere with nuclear division by preventing the aggregation of microtubules needed for mitosis B- ... membrane-bound enzymes like thoseinvolved in nutrient transport and chitin synthesis D- all of these

Last Answer : all of these

During the process of isolation of DNA, chilled ethanol is added to (a) precipitate DNA (b) break open the cell to release DNA (c) facilitate action of restriction enzymes (d) remove proteins such as histones.

Description : During the process of isolation of DNA, chilled ethanol is added to (a) precipitate DNA (b) break open the cell to release DNA (c) facilitate action of restriction enzymes (d) remove proteins such as histones.

Last Answer : a) precipitate DNA

As a plasma expander, dextran has the following advantages except: A. It exerts oncotic pressure similar to plasma proteins B. It keeps plasma volume expanded for about 24 hours C. It is nonpyrogenic D. It does not interfere with grouping and cross matching of blood

Description : As a plasma expander, dextran has the following advantages except: A. It exerts oncotic pressure similar to plasma proteins B. It keeps plasma volume expanded for about 24 hours C. It is nonpyrogenic D. It does not interfere with grouping and cross matching of blood

Last Answer : D. It does not interfere with grouping and cross matching of blood

Advantages of selective serotonin reuptake inhibitors (SSRIs) include the following except: A. No interference with ejaculation and orgasm B. Minimal sedative action C. Unlikely to cause fall in BP D. Lack of seizure precipitating potential

Description : Advantages of selective serotonin reuptake inhibitors (SSRIs) include the following except: A. No interference with ejaculation and orgasm B. Minimal sedative action C. Unlikely to cause fall in BP D. Lack of seizure precipitating potential

Last Answer : A. No interference with ejaculation and orgasm

Choose the correct statement about nonsteroidal antiinflammatory drugs (NSAIDs): A. NSAIDs attenuate hypoglycaemic action of sulfonylureas B. NSAIDs potentiate antihypertensive action of ACE inhibitors C. Serum lithium levels are lowered by concurrent administration of NSAIDs D. Combined therapy with prednisolone and NSAIDs carries higher risk of gastric bleeding

Description : Choose the correct statement about nonsteroidal antiinflammatory drugs (NSAIDs): A. NSAIDs attenuate hypoglycaemic action of sulfonylureas B. NSAIDs potentiate antihypertensive action of ACE inhibitors C. ... D. Combined therapy with prednisolone and NSAIDs carries higher risk of gastric bleeding

Last Answer : D. Combined therapy with prednisolone and NSAIDs carries higher risk of gastric bleeding

The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes and inhibit bacterial protein synthesis (c) They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antiimicrobial action is (a) They chelate Ca2+ ions and alter permeability of bacterial cell membrane (b) They bind to 30S ribosomes ... peptide chain in the bacteria (d) They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : Ans: B

Your upcoming project includes project team members from a foreign country. To make certain that cultural differences don’t interfere with team performance, thereby affecting the success of the project, your first course of action is to do which of the following? A. Provide diversity training to all the team members. B. Collocate the project team. C. Perform team-building exercises. D. Inform the team members of the organization’s rules and standards.

Description : Your upcoming project includes project team members from a foreign country. To  make certain that cultural differences don't interfere with team performance, thereby  affecting the success of the project ... exercises.  D. Inform the team members of the organization's rules and standards.

Last Answer : A. Provide diversity training to all the team members.

The most probable mechanism of action of imidazole antifungal drugs is: A. They bind to ergosterol in fungal cell membrane and make it leaky B. They interfere with ergosterol synthesis by fungi C. They interfere with fungal mitosis D. They block oxidative phosphorylation in fungi

Description : The most probable mechanism of action of imidazole antifungal drugs is: A. They bind to ergosterol in fungal cell membrane and make it leaky B. They interfere with ergosterol synthesis by fungi C. They interfere with fungal mitosis D. They block oxidative phosphorylation in fungi

Last Answer : B. They interfere with ergosterol synthesis by fungi

The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes and inhibit bacterial protein synthesis C. They bind to 50S ribosomes and interfere with translocation of the growing peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Description : The most important mechanism by which tetracycline antibiotics exert antimicrobial action is: A. They chelate Ca2+ ions and alter permeability of bacterial cell membrane B. They bind to 30S ribosomes ... peptide chain in the bacteria D. They interfere with DNA mediated RNA synthesis in bacteria

Last Answer : B. They bind to 30S ribosomes and inhibit bacterial protein synthesis

The following is true of selegiline: A. It does not exert antiparkinsonian action unless combined with levodopa B. It overcomes the ‘on-off ’ effect in levodopa treated advanced parkinsonian patients C. It retards the progression of Parkinson's disease D. At doses used in parkinsonism it does not interfere with peripheral metabolism of dietary amines

Description : The following is true of selegiline: A. It does not exert antiparkinsonian action unless combined with levodopa B. It overcomes the on-off ' effect in levodopa treated advanced parkinsonian ... D. At doses used in parkinsonism it does not interfere with peripheral metabolism of dietary amines

Last Answer : . At doses used in parkinsonism it does not interfere with peripheral metabolism of dietary amines

$ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The first organisms were, pherhaps the chemoau

Description : $ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The first organisms were, pherhaps the chemoau

Last Answer : $ Life on earth originated by interaction of the various chemical substances in the broth of the sea. ! The ... wrong D. If both As and R are wrong.

$ Homogeniser and ultracentriguge are the devices for separating various cell organelles. ! The radioactive substances used in biological studies are

Description : $ Homogeniser and ultracentriguge are the devices for separating various cell organelles. ! The radioactive substances used in biological studies are

Last Answer : $ Homogeniser and ultracentriguge are the devices for separating various cell organelles. ! The radioactive ... . If both As and R are wrong.

$ The enzymes which joins short pieces DNA in the laggins strand is called ligase. ! Lagging strand and leading strand are formed due to replication f

Description : $ The enzymes which joins short pieces DNA in the laggins strand is called ligase. ! Lagging strand and leading strand are formed due to replication f

Last Answer : $ The enzymes which joins short pieces DNA in the laggins strand is called ligase. ! Lagging strand and ... wrong D. If both As and R are wrong.

Factors those interfere with the binding of `O_(2)` with haemoglobin are:

Description : Factors those interfere with the binding of `O_(2)` with haemoglobin are:

Last Answer : Factors those interfere with the binding of `O_(2)` with haemoglobin are:

Factors those interfere with the binding of `O_(2)` with haemoglobin are:

Description : Factors those interfere with the binding of `O_(2)` with haemoglobin are:

Last Answer : Factors those interfere with the binding of `O_(2)` with haemoglobin are:

$ DNA replication is semiconservative. ! Helicases are the enzymes which can break the hydrogen bonds between the nuclotides of DNA

Description : $ DNA replication is semiconservative. ! Helicases are the enzymes which can break the hydrogen bonds between the nuclotides of DNA

Last Answer : $ DNA replication is semiconservative. ! Helicases are the enzymes which can break the hydrogen bonds between the ... D. If both As and R are wrong.

$ In conjugated proteins, the protein molecule is joined to a non proteins group called prosthetic group. ! Nucleproteins are a type of conjugated pro

Description : $ In conjugated proteins, the protein molecule is joined to a non proteins group called prosthetic group. ! Nucleproteins are a type of conjugated pro

Last Answer : $ In conjugated proteins, the protein molecule is joined to a non proteins group called prosthetic group. ! ... wrong D. If both As and R are wrong.

$ Sieve tubes have "P" proteins. ! In gymnosperms, sieve tubes are associated with albuminous cells.

Description : $ Sieve tubes have "P" proteins. ! In gymnosperms, sieve tubes are associated with albuminous cells.

Last Answer : $ Sieve tubes have "P" proteins. ! In gymnosperms, sieve tubes are associated with albuminous cells. A. If ... is wrong D. If both As and R are wrong.

$ Spirulina is a rich source of proteins. ! Spirulina has a spiral chloroplasts.

Description : $ Spirulina is a rich source of proteins. ! Spirulina has a spiral chloroplasts.

Last Answer : $ Spirulina is a rich source of proteins. ! Spirulina has a spiral chloroplasts. A. If both As and R are ... is wrong D. If both As and R are wrong.

$ Coenzymes are usually proteins ! The term feedback refers to the effect of enzyme concentration on its rate of reaction.

Description : $ Coenzymes are usually proteins ! The term feedback refers to the effect of enzyme concentration on its rate of reaction.

Last Answer : $ Coenzymes are usually proteins ! The term feedback refers to the effect of enzyme concentration on its rate ... wrong D. If both As and R are wrong.

$ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are contractile proteins

Description : $ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are contractile proteins

Last Answer : $ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are ... wrong D. If both As and R are wrong.

$ Proteins, polysaccharides and nucleic acid are the macromolecules of a cell. ! DNA contains Ribose Sugar.

Description : $ Proteins, polysaccharides and nucleic acid are the macromolecules of a cell. ! DNA contains Ribose Sugar.

Last Answer : $ Proteins, polysaccharides and nucleic acid are the macromolecules of a cell. ! DNA contains Ribose Sugar. A ... wrong D. If both As and R are wrong.

How many of the following substances are secreted by exocrine glands. mucus, thyroxine, saliva, earwax, insulin, oil, milk, digestive enzymes, melaton

Description : How many of the following substances are secreted by exocrine glands. mucus, thyroxine, saliva, earwax, insulin, oil, milk, digestive enzymes, melaton

Last Answer : How many of the following substances are secreted by exocrine glands. mucus, thyroxine, saliva, earwax, insulin, ... A. Four B. Five C. Six D. Seven

Proteinous substances which catalyze biochemical reactions are known as (A) Activators (B) Catalysts (C) Enzymes (D) Hormones

Description : Proteinous substances which catalyze biochemical reactions are known as (A) Activators (B) Catalysts (C) Enzymes (D) Hormones

Last Answer : Answer : C

Postural hypotension is a common adverse effect of which one of the following types of drugs ? (a) ACE inhibitors (b) Alpha-receptor blockers (c) Arteriolar dilators (d) ß1 – selective receptor blockers (e) Nonselective ß - blockers

Description : Postural hypotension is a common adverse effect of which one of the following types of drugs ? (a) ACE inhibitors (b) Alpha-receptor blockers (c) Arteriolar dilators (d) ß1 – selective receptor blockers (e) Nonselective ß - blockers

Last Answer : Ans: B

What types of reforms were delayed due to the belief that government shouldn't interfere?

Description : What types of reforms were delayed due to the belief that government shouldn't interfere?

Last Answer : i have no clue

What Proteins that bind foreign substances in the body?

Description : What Proteins that bind foreign substances in the body?

Last Answer : Need answer

What cells main job is to sort and package proteins and other substances in a plant cell. chloroplasts chromosomes nucleus Golgi Submit?

Description : What cells main job is to sort and package proteins and other substances in a plant cell. chloroplasts chromosomes nucleus Golgi Submit?

Last Answer : organelle

Osmotically active substances in plasma are (A) Sodium (B) Chloride (C) Proteins (D) All of these

Description : Osmotically active substances in plasma are (A) Sodium (B) Chloride (C) Proteins (D) All of these

Last Answer : Answer : D

Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Description : Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Last Answer : (1) Bacteria Explanation: Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as ... or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.

Biodegradable wastes can usually be converted into useful substances with the help of - (1) bacteria (2) nuclear proteins (3) radioactive substances (4) viruses

Description : Biodegradable wastes can usually be converted into useful substances with the help of - (1) bacteria (2) nuclear proteins (3) radioactive substances (4) viruses

Last Answer : (1) bacteria Explanation: Biodegradable waste is a type of waste, typically originating from plant or animal sources, which may be degraded by other living organisms.

Biogradable wastes can usually be converted into useful substances with the help of: (1) nuclear proteins (2) radio-active substances (3) viruses (4) bacteria

Description : Biogradable wastes can usually be converted into useful substances with the help of: (1) nuclear proteins (2) radio-active substances (3) viruses (4) bacteria

Last Answer : (4) bacteria Explanation: Bacteria can convert biodegradable wastes into useful substances.

Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Description : Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Last Answer : (1) Bacteria Explanation: Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic ... and autotrophs are least in proportion which are not directly involved in organic matter decomposition.

Can substances other than proteins be antigens?

Description : Can substances other than proteins be antigens? 

Last Answer : Yes. Most antigens are proteins, but polysaccharides, certain lipids, and nucleic acids also can trigger immune reactions. Besides, some relatively simple organic chemicals and chemical groups can be specifically ... coupled with a protein. The latter in this case will be called a carrier. 

Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of insulin d. are freely permeable to electrolytes but not to proteins e. have a stable composition throughout the life of the cell

Description : Cell membranes a. consist almost entirely of protein molecules b. are impermeable to fat-soluble substances c. in some tissues permit the transport of glucose at a greater rate in the presence of ... to electrolytes but not to proteins e. have a stable composition throughout the life of the cell

Last Answer : in some tissues permit the transport of glucose at a greater rate in the presence of insulin

Vacuole in a plant cell (a) lacks membrane and contains air (b) lacks membrane and contains water and excretory substances (c) is membrane-bound and contains storage proteins and lipids (d) is membrane-bound and contains water and excretory substances.

Description : Vacuole in a plant cell (a) lacks membrane and contains air (b) lacks membrane and contains water and excretory substances (c) is membrane-bound and contains storage proteins and lipids (d) is membrane-bound and contains water and excretory substances.

Last Answer : (d) is membrane-bound and contains water and excretory substances.

Pyrogens are a. Proteins Affecting the Hypothalamus. b. Bacterial Fragments. c. Fever-Producing Substances. d. All the Above (A—C) Are Correct.

Description : Pyrogens are a. Proteins Affecting the Hypothalamus. b. Bacterial Fragments. c. Fever-Producing Substances. d. All the Above (A—C) Are Correct.

Last Answer : d. All the Above (A—C) Are Correct.

Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a unit of fluid. Osmolality refers to the number of dissolved particles contained in a unit of fluid. c) the excretion of substances such as glucose through increased urine output. Osmotic diuresis occurs when the urine output increases due to excretion of substances such as glucose. d) the amount of pressure needed to stop flow of water by osmosis. Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Description : Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a ... . Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Last Answer : a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin.

In which of the following class of substances would WAX be found? w) carbohydrates x) lipids y) proteins z) nucleic acids

Description : In which of the following class of substances would WAX be found? w) carbohydrates x) lipids y) proteins z) nucleic acids

Last Answer : ANSWER: LIPIDS

Hormones are composed from many classes of molecules. As far as our present knowledge extends, hormones are NOT found in which of the following categories of substances: a) proteins b) peptides c) nucleic acids d) steroids

Description : Hormones are composed from many classes of molecules. As far as our present knowledge extends, hormones are NOT found in which of the following categories of substances: a) proteins b) peptides c) nucleic acids d) steroids

Last Answer : ANSWER: C -- NUCLEIC ACIDS 

Which one of the following substances is normally found in urine? (1) blood proteins (2) creatinine

Description : Which one of the following substances is normally found in urine? (1) blood proteins (2) creatinine

Last Answer : creatinine

Biodegradable wastes can usually be converted into useful substances with the help of (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Description : Biodegradable wastes can usually be converted into useful substances with the help of (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Last Answer : Bacteria

$ in two kingdom classification , fungi were given a special status separately. ! In five kingdom classification, fungi are included in kingdom planta

Description : $ in two kingdom classification , fungi were given a special status separately. ! In five kingdom classification, fungi are included in kingdom planta

Last Answer : $ in two kingdom classification , fungi were given a special status separately. ! In five kingdom classification, ... D. If both As and R are wrong.

Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following statement(s) is/are true concerning antimicrobial classes? a. Penicillins and cephalosporins share the compound structure of a b-lactam ring which binds to bacterial division plate proteins b. Tetracyclines and macrolides such as erythromycin inhibit bacterial ribosomal activity and therefore protein synthesis c. Aminoglycosides act in a similar fashion to tetracyclines and therefore are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Description : Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following ... are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Last Answer : Answer: a, b, d Penicillins, cephalosporins, and monobactams possess a b-lactam ring of some type and act to bind bacterial division plate proteins, thus inhibiting cell wall ... act in different mechanisms to inhibit protein synthesis, therefore two agents in combination act synergistically

What is the enzymes in gastric juice that breaks down proteins?

Description : What is the enzymes in gastric juice that breaks down proteins?

Last Answer : Need answer

Isoenzymes can be characterized by (A) Proteins lacking enzymatic activity that are necessary for the activation of enzymes (B) Proteolytic enzymes activated by hydrolysis (C) Enzymes with identical primary structure (D) Similar enzymes that catalyse different reaction

Description : Isoenzymes can be characterized by (A) Proteins lacking enzymatic activity that are necessary for the activation of enzymes (B) Proteolytic enzymes activated by hydrolysis (C) Enzymes with identical primary structure (D) Similar enzymes that catalyse different reaction

Last Answer : Answer : B

Dietary fibre denotes (A) Undigested proteins (B) Plant cell components that cannot be digested by own enzymes (C) All plant cell wall components (D) All non digestible water insoluble polysaccharide

Description : Dietary fibre denotes (A) Undigested proteins (B) Plant cell components that cannot be digested by own enzymes (C) All plant cell wall components (D) All non digestible water insoluble polysaccharide

Last Answer : Answer : B

The digestability of certain denatured proteins by proteolytic enzymes (A) Decreases (B) Increases (C) Normal (D) None of these

Description : The digestability of certain denatured proteins by proteolytic enzymes (A) Decreases (B) Increases (C) Normal (D) None of these

Last Answer : Answer : A